Theory Seminar (High Energy/Cosmology)

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Events on Wednesday, October 18th, 2023

Extensions of a scale separation AdS$_4$ solution and their mass spectrum.
Time: 12:00 pm - 1:00 pm
Place: 5280 Chamberlin Hall
Speaker: Georgios Tringas , Annecy, LAPTH
Abstract: In this talk we will discuss two extensions of the so-called DGKT solution, a 4d scale-separated anti-de Sitter (AdS) solution obtained as a compactification on a 6d torus orbifold. Each extension consists in a specific large n expansion beyond the DGKT solution, where n is the unbounded F4-flux parameter. One of the extensions considered generalizes the known warped, partially localized solution. We analyse the two extensions in 10d massive type IIA supergravity as well as in a 4d effective theory, using a general warped compactification formalism. The main new correction to DGKT that we get is one from F4, the other fluxes being constrained by flux quantization. In each extension, one would expect corrections to the mass spectrum, before reaching contributions from alpha-prime corrections. However the mass spectrum turns out to be robust and conformal dimensions remain unchanged.
Host: Gary Shiu
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